Do you have any other recommendations for constipation with adrenal fatigue?

In addition to the triphala I recommend adding some licorice root, yucca root and marshmallow root or slippery elm. All of these will help with the flora and the licorice root and yucca root will help with the adrenals. Licorice root is also great for healing ulcers, and marshmallow root or slippery elm will help with soothing the stomach and will provide a mucilage to aid with stool movement.

Seaweeds can also help by holding moisture in the intestines, which also helps the flora, and through thyroid support. Hypothyroidism can lead to constipation as well. And stress can suppress the thyroid.